In our fleet's opinion, the number one kdf fleet currently. Check it out and shoot anyone whos online a msg, they should hook you up with vent info and you can go from there.
In LORE's opinion, LORE is #1...even though they get stomped when they play both our Klingons AND Federation Alts.
In all seriousness (not that what i said above isnt true), it takes a special fleet to openly announce theyre the best, whether or not its true (pro tip: its not). Not even the federation fleet, which is clearly the best, would say such a thing. Quite professional.
Hi, I'm faithborn. I am a fleetleader of -TSI- or The Spanish Inquisition. We are a federation fleet that has existed (albiet in a different name) since the beginning of the fleet. Unfortunately people have begun to expect us.
That said; I publicly endorse these fleets for the Klingon side:
Lore - Lore is probably the strongest Klingon fleet. Not only are they constantly adapting, but they are constantly fighting their strongest. They have gone from humble beginnings and gotten incredibly strong in the past few months. They are a very high profile fleet right now.
QEW - Because I can't spell the first part of their name. They are a strong fleet and have a leg up over other fleets. Given a few months I expect for them to remain a pillar of Klingon pvp now that (some) klingon fleets are adapting the mentality of teamwork.
Along the federation side I endorse: OOV, 300, FSI, RE, KT, and of course, TSI .